The city known as the financial and cultural center of the Ottoman Empire was Istanbul, formerly known as Constantinople. Following its conquest by the Ottomans in 1453, Istanbul became the empire's capital and a hub for trade, art, and culture. Its strategic location between Europe and Asia facilitated commerce and cultural exchange, making it a melting pot of diverse influences. Landmarks such as the Hagia Sophia and the Blue Mosque reflect its rich architectural heritage. Istanbul remained significant throughout the empire’s history, serving as a center for various intellectual and artistic movements, and it continues to play a key role in Turkey’s cultural identity.